CN103066523B - High-tension transmission line quick repair tower - Google Patents
High-tension transmission line quick repair tower Download PDFInfo
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- CN103066523B CN103066523B CN201210246812.5A CN201210246812A CN103066523B CN 103066523 B CN103066523 B CN 103066523B CN 201210246812 A CN201210246812 A CN 201210246812A CN 103066523 B CN103066523 B CN 103066523B
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Abstract
A high-tension transmission line quick repair tower comprises a tower body (10). Three composite insulators (30) which are fixed on the ground through steel stranded pulling wires (20) are sequentially in tandem connection with the left side of the tower body (10). A guide line pulley tackle (40) is arranged at the lower portion of the connecting position of each composite insulator in a hanging mode. Two composite insulators (30) which are fixed on the ground through the steel stranded pulling wires (20) are sequentially in tandem connection with the right side of the tower body (10). One guide line pulley tackle is arranged at the lower portion of the connecting position of the two composite insulators in the hanging mode. Each composite insulator (30) is perpendicular to the direction of a high-tension transmission line. An overhead ground wire pulley tackle (50) is arranged at the position close to the top of the left side of the tower body (10). The steel stranded pulling wires (20) are respectively arranged at the front side and the rear side of the tower body (10). Due to the fact that the steel stranded pulling wires replaces cross arms to enable the composite insulators to be in a fixed mode, the high-tension transmission line quick repair tower has the advantages of being capable of avoiding windage yaw effect caused by suspension insulators and simultaneously allowing a plane turn angle of the high-tension line, wherein the plane angle is not more than 30 degrees.
Description
Technical field
Under the present invention relates to high pressure overhead power line accident condition, rapid rush-repair can be carried out and the emergent repairing tower that temporarily restores electricity, the open side type aluminium alloy emergent repairing tower particularly relate to and be suitable for 220kV and following transmission line, cancelled cross-arm.
Background technology
Prior art high-tension line steel tower of speedily carrying out rescue work is divided into the large class of open side type tower and queen post tower two, and be called that tradition is speedily carried out rescue work steel tower, it comprises lightning conducter support, wire cross-arm, insulator, tower body and basis.Tradition steel tower of speedily carrying out rescue work all employs cross-arm, and cross-arm is a cantilever beam, and the insulator be suspended on below cross-arm can produce windage yaw effect.In emergency work construction, first cross-arm should be assembled, then after insulator is installed, just can carry out lead wire and earth wire and discharge work.Thus add workload and difficulty, extend emergency repair time, this one.
Two, tradition steel tower of speedily carrying out rescue work is higher to the requirement of track plan corner, and track plan corner is generally limited within 5 °.But in fact after circuit generation wire breaking and tower falling accident, be all utilize original base carry out tower erection and discharge lead wire and earth wire work in original corridor, or near the route selection again of original corridor.In mountain area, if will near former corridor group vertical speedily carry out rescue work tower time, consider restriction and the factor such as alive circuit distance to the ground, shaft tower stressing conditions of track plan corner, need stressed larger tower could meet site operation requirement.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part, and a kind of high-tension transmission line quick repair tower is provided, this emergent repairing tower eliminates cross-arm, the one end of the insulator be positioned at below former emergent repairing tower cross-arm is directly suspended on the strain plate of top of tower, and the other end of insulator is fixed by steel strand bracing wire and ground, namely, cross-arm is instead of with bracing wire, thus make insulator become fixed, this avoid the windage yaw effect that suspension insulator causes, simultaneously, emergent repairing tower of the present invention also allows high-tension line to have to be not more than the plane corner of 30 °.
Emergent repairing tower of the present invention does not use cross-arm, according to different electric pressure, can use the synthetic insulator of different length, and the angle of adjustment steel strand bracing wire, to meet the requirement of electrical distance.Simultaneously according to different wire types, select the bracing wire of dimension, earth anchor, insulator and column, to meet the requirement of mechanical strength.
The technical scheme that the present invention solve the technical problem employing is:
A kind of high-tension transmission line quick repair tower, for restoring electricity under ultra-high-tension power transmission line accident condition temporarily, comprises the pillar tower body be made up of each basic segment, especially:
The left side of described tower body is serially connected with three synthetic insulators earthward successively along its tower top, these three synthetic insulators be serially connected by steel strand bracing wire relatively face tilt fix, often underhung wire coaster of adjacent two synthetic insulator junctions, namely, the below of three synthetic insulators hangs two wire coasters altogether, the right side of described tower body is serially connected with two synthetic insulators earthward successively along its tower top, these two synthetic insulators be serially connected equally by steel strand bracing wire relatively face tilt fix, the below of these two synthetic insulator junctions hangs a wire coaster equally, described each synthetic insulator and high pressure perpendicular along line direction, on the left of described tower body, nearly top place is provided with overhead ground wire coaster,
The both sides, front and back of described tower body are respectively equipped with the steel strand bracing wire for balancing described tower body left and right sides load.
This emergent repairing tower is applicable to 220kV and following transmission line, entirety is single-column aluminium alloy truss formula structure, described basic segment length 6m, cross section is the square of 0.6*0.6m, each basic segment passes through bolted on connection by ring flange, described tower body top is provided with one piece of tetragonal strain plate, for installing the described synthetic insulator of the described tower body left and right sides, and the described steel of both sides twists bracing wire before and after described tower body, described tower body waist is also provided with one piece of tetragonal strain plate, for installing the bracing wire of four steel strands.
This emergent repairing tower allows the high-tension line plane corner being not more than 30 °.
Be connected with gold utensil between described two often adjacent synthetic insulators, it comprises two U-shaped rings and is connected to the towing plate between these two U-shaped rings, and described towing plate hangs described wire coaster by coaster suspension ring.
The diameter of described wire coaster is greater than 15 times of conductor cross-section diameter, and meanwhile, the diameter of described overhead ground wire coaster is also greater than 15 times of overhead ground wire diameter of section; Described wire coaster adopts aluminium alloy to make, and described ground wire coaster is steel coaster.
The bent inclination angle of fire of described tower body top and waist strain plate is respectively 45 ° and 30 °.
This emergent repairing tower optimum height is 24m, and wire at least reaches 13m to ground level.
Described synthetic insulator is for supporting with fixing cord position and ensureing the dielectric strength of wire, and each synthetic insulator is made up of the insulator of two long 2.5m or 3.0m.
Compared with the existing technology, the beneficial effect of high-tension transmission line quick repair tower of the present invention is:
First, emergent repairing tower of the present invention solves wire windage yaw problem.Due to without cross-arm, wire is fixed by two or three synthetic insulators, so, as long as solution wire live part reaches safety from tower body electrical distance and requires, that is, 110 kilovolts of electrical distances are 1.0 meters, 220 kilovolts of electrical distances are 1.9 meters, certainly leave certain nargin in addition herein, therefore, comparatively single-column or queen post tower adaptability of speedily carrying out rescue work is stronger for this tower.Owing to decreasing cross-arm, time of the vertical emergent repairing tower of the present invention of group founds open side type than group and to speedily carry out rescue work one of tower few three, if speedily carry out rescue work compared with tower with queen post, the material-saving that at least saves time is over half.
Secondly, emergent repairing tower of the present invention also allows high-tension line to have to be not more than the plane corner of 30 °, and when track plan corner is 30 °, insulator string is actual to plumb line angle is 15 °.Like this, emergent repairing tower just can avoid the line corridor that restores electricity, and tower group of selecting arbitrarily to speedily carry out rescue work stands position, as long as two bases are speedily carried out rescue work, the spacing of tower is less than 300 meters, just can meet the demands when wire gauge is less than LGJ-500/35.
Accompanying drawing explanation
Fig. 1 is the axonometric projection structural representation of high-tension transmission line quick repair tower of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is wire coaster 40, wire 70, towing plate 90, the interconnective structural representation of U-shaped ring 100;
Fig. 5 is the interconnective structural representation of overhead ground wire coaster 50, ground wire 80, towing plate 90, U-shaped ring 100.
Embodiment
Below in conjunction with accompanying drawing, content of the present invention is described in further detail.
Shown in Fig. 5, a kind of high-tension transmission line quick repair tower, for restoring electricity under ultra-high-tension power transmission line accident condition temporarily, comprise the pillar tower body 10 be made up of each basic segment, the left side of described tower body 10 is serially connected with three synthetic insulators 30 earthward successively along its tower top, these three synthetic insulators be serially connected 30 by steel strand bracing wire 20 relatively face tilt fix, underhung wire coaster 40 of every adjacent synthetic insulator junction, namely, the below of three synthetic insulators hangs two wire coasters 40 altogether, the right side of described tower body 10 is serially connected with two synthetic insulators 30 earthward successively along its tower top, these two synthetic insulators be serially connected 30 equally by the bracing wire 20 of steel strand relatively face tilt fix, the below of these two synthetic insulator junctions hangs a wire coaster equally, described each synthetic insulator 30 is perpendicular along line direction with high pressure, on the left of described tower body 10, nearly top place is provided with overhead ground wire coaster 50, described wire coaster 40 sets up wire 70, and described ground wire coaster 50 sets up ground wire 80.
The both sides, front and back of described tower body 10 are respectively equipped with the steel strand bracing wire 20 for balancing described tower body 10 left and right sides load.
This emergent repairing tower is applicable to 220kV and following transmission line, entirety is single-column aluminium alloy truss formula structure, described basic segment length 6m, cross section is the square of 0.6*0.6m, each basic segment passes through bolted on connection by ring flange, described tower body 10 top is provided with one piece of tetragonal strain plate 60, for installing the described synthetic insulator 30 of described tower body 10 left and right sides, and the described steel of both sides twists bracing wire 20 before and after described tower body 10, described tower body 10 waist is also provided with one piece of tetragonal strain plate 60, for installing the bracing wire 20 of four steel strands.
This emergent repairing tower allows the high-tension line plane corner being not more than 30 °, decrease straight line to speedily carry out rescue work the rigors of tower to circuit corner, traditional straight line tower of speedily carrying out rescue work requires that circuit corner must not be greater than 5 °, as long as and the present invention's tower of speedily carrying out rescue work arranges that the spacing meeting tower and tower is in the scope required, its circuit corner is not more than 30 °, so this is speedily carried out rescue work, tower adaptability is stronger.
Be connected with gold utensil between described two often adjacent synthetic insulators 30, it towing plate 90 comprising two U-shaped rings 100 and be connected between these two U-shaped rings 100, described towing plate 90 hangs described wire coaster 40 by coaster suspension ring.
The diameter of described wire coaster 40 is greater than 15 times of conductor cross-section diameter, and meanwhile, the diameter of described overhead ground wire coaster 50 is also greater than 15 times of overhead ground wire diameter of section; Described wire coaster 40 adopts aluminium alloy to make, and described ground wire coaster 50 is steel coaster.
The bent inclination angle of fire of described tower body top and waist strain plate 60 is respectively 45 ° and 30 °, that is, described tower body top and waist are respectively provided with one piece of strain plate, the bent inclination angle of strain plate bracing wire fire, top is 45 °, the bent inclination angle of waist strain plate bracing wire fire is 30 °, to meet the bracing wire inclination angle of bracing wire and insulator string, described synthetic insulator and bracing wire are all contained on the strain plate at tower body top, the speedily carry out rescue work bottom of tower is inserted on tower leg wherein, this tower leg is formed by 0.5 m steel sole plate and cross supporting bracket electric welding, wherein have the notch that tower body inserts and the screw penetrating bolt in the middle of supporting bracket, tower leg is bolted fixing with tower of speedily carrying out rescue work, the steel plate of described notch is made up of three block plates, wherein, middle steel plate is low than both sides steel plate, insert to facilitate tower body, if when emergent repairing tower basis is soft, can consider to adopt sleeper Extended chemotherapy base areas, to reduce its basic stress.
This emergent repairing tower tower body optimum height is four sections of 24m, except synthetic insulator has the vertical distance to the ground of individual geometry to ground, wire at least reaches more than 13m to ground level reality, and existing exhaling of steel tower design of speedily carrying out rescue work claims height for about 9m, exhale claim high refer to be positioned at tower bottom of speedily carrying out rescue work cross-arm to the relative altitude on ground, for 110kV and 220KV circuit, exhaling of existing tower of speedily carrying out rescue work claims highly to be generally more than 9 meters.
Described synthetic insulator 30 is for supporting with fixing cord position and ensureing the dielectric strength of wire, and each synthetic insulator 30 is made up of the insulator of two long 2.5m or 3.0m.
This emergent repairing tower tower body adopts aluminium alloy to make, and relative to steel tower body, its weight can alleviate nearly 1/3rd.Described tower body is primarily of a hypomere, some stage casings and an epimere composition, and hypomere is tapered towards above ground portion, and the cross-sectional aspect towards sky part is 600mm.In tower body, epimere width is 600mm, and each section of composition 24m, 30m or 36m differing heights, must lean on bracing wire to support because this tower is stable.So four temporary guys must be had to fix from tower top.Simultaneously tower body mid portion also needs to add four temporary guys and fixes.
With reference to shown in Fig. 1, A, B, C, D are cable quadrant or temporary ground anchor, and the main fixed tower that rises does not offset, and avoids robbing tower body disequilibrium.
For avoiding three wires excessively closely to cause short circuit dischange to tower body electrical distance, key is that two wires of close tower body must meet with tower body distance 110kV more than 1.0 meters, and 220kV is more than 2.1 meters.Tower top, can direct ground connection because be overhead ground wire.
Tower tower body of speedily carrying out rescue work balance must lean on bracing wire to solve, so it is also solve by bracing wire that left and right sides synthetic insulator is fixed.Front and back side guy, because of along line direction, is fixation purely.
Synthetic insulator can process arbitrarily its length, by the adjustment of synthetic insulator processing length and ground bracing wire, can meet live wire and reach the safe distance of each voltage gradation to tower body to tower body distance.Temporary guy can close dish, namely goes up pull-down line and share one piece of cable quadrant, also can fix with respective cable quadrant and ground respectively.
Synthetic insulator is fixed by line hardware and ground bracing wire, overhead transmission line three-phase conducting wire must meet the minimum range of live wire to shaft tower tower body grounded part, and synthetic insulator has lightweight, easy to process, the feature of excellent insulating property, as can be seen from Figure 2, there are two phase conductors in the speedily carry out rescue work left side of tower, so synthetic insulator should have three groups, and on the right side of tower of speedily carrying out rescue work, only have a phase conductor, so synthetic insulator only has two groups, can guarantee that card wire all keeps insulation property with tower of speedily carrying out rescue work, bracing wire like this.Overhead ground wire is by line hardware and the direct ground connection of tower body of speedily carrying out rescue work.
Insulator direction is mutually vertical along line direction with high pressure, and be one of circuit condition that must meet, on the other hand, three-phase conducting wire and overhead ground wire should be arranged on the both sides in emergent repairing tower cross line direction.
Bracing wire for tower body balance is fixed with metal parts of pull wire UT shaped cable clamp and steel strand wire and ground bracing wire exactly, and equally, synthetic insulator end has individual hanging hole, also can fix with UT shaped cable clamp and steel strand wire and ground bracing wire.
Charged wire is fixed by the gold utensil between two synthetic insulators and aluminium matter coaster, and because synthetic insulator and ground are fixed by steel strand wire, its insulator string avoids prior art tower of speedily carrying out rescue work and causes tower size shortcoming bigger than normal, baroque because of windage yaw.
So-called fiery bent inclination angle is exactly by strain plate bent angle decurvation 45 ° or 30 °, because insulator bracing wire or the fair line trackside bracing wire of tower body top are 45 ° to ground angle, and waist bracing wire over the ground angle about about 30 °, consider bracing wire angle over the ground, so the bent inclination angle of strain plate fire will meet actual conditions as far as possible, top strain plate and waist strain plate inclination angle are respectively 45 degree and 30 degree.
As calculated, it is LGJ-500/35 that above-mentioned emergent repairing tower embodiment is applicable to wire gauge, and substance is 1642kg/km, overhead ground wire specification is 1 19 structure galvanized strand wiress, specification is φ 9.0mm, its substance is 41.11kg/km, sectional area is 48.32mm2, or the OPGW fiber optic cables that match of weight with it, during by six sections of 36m tower heights, determine that this tower service condition is that span under vertical load is not more than 500m, horizontal wind excitation span is 330m, if winter construction can not consider overhead ground wire shielding angle, if summer construction, can consider that overhead ground wire shielding angle is at about 30 °, because the probability of winter construction generation in thunderstorm day is little, and summer construction will consider the possibility of thunderbolt circuit, so the shielding angle of overhead ground wire will be considered, top of tower of speedily carrying out rescue work if desired also will add a hyphen load, to strengthen overhead ground wire shielding angle, in order to prevent from speedily carrying out rescue work, tower is struck by lightning, also can lay perfect grounding system.
Described tower body adopts aluminium alloy extrusions segmentation composition, and every section of 6m, is connected by ring flange between every section, described ring flange is welded by four blocks of angle steel, and its angle steel is also welded with gusset, to strengthen supporting, be drilled with the connecting hole of connecting bolt between gusset, connect with M16 bolt between ring flange.
Synthetic insulator supports and fixing cord position ensure that wire has suitable dielectric strength in shaft tower, and for convenience of transport and storage, its length is about 2.5m and 3.0m.Consider its electrical distance, synthetic insulator can two be combined into the synthetic insulator that a string oblique distance is 5m to 6m, thus ensure that wire vertical range and horizontal geometric projector distance meet the requirement of circuit wire spacing and vertical range.Synthetic insulator is the insulator closely grown up about ten years, it instead of the porcelain and glass insulator that current power transmission sequence generally uses, be characterized in good insulation preformance, lightweight, and its insulated lengths can be decided according to the height of transmission line electric pressure, such as, low-voltage insulator length optional selects shorter synthetic insulator, and high-tension insulator length optional selects longer synthetic insulator.
Temporary steel strand bracing wire part of burying on ground may be soil or rock, for racing against time, if earth part, part of can bracing wire being buried fast scrapes out long 1m, wide 0.4m, the heatable adobe sleeping platform of high 2m, then imbeds the composite type cable quadrant of band distaff, if bracing wire is buried, part is rock, a back cut diameter 0.2m can be watered, lower port diameter 0.4m, the concrete earth anchor of the band distaff of the degree of depth 0.5.
Carry an overhead ground wire on the left of emergent repairing tower of the present invention, the vertical load of two wires, right side carries the vertical load of a wire.Because both sides vertical load is different, the stable complete of this tower is fixed by whole tower body upper strata and middle level bracing wire.As can be seen from Figure 1, this tower allows certain track plan corner.
The maximum feature of this tower instead of existing general band cross-arm to speedily carry out rescue work tower, and synthetic insulator oblique pull fixed to ground by bracing wire, as can be seen from Figure 1, bracing wire fixing point is respectively A, B, C, D place.Emergent repairing tower of the present invention solves the problem of the distance of wire live part and tower body, and one is the degree of tightness controlling ground temporary guy, and two is the length strengthening synthetic insulator.When angle is 45 ° over the ground in bracing wire, so synthetic insulator and tower body angle can consider 30 °, thus lay the first stone to synthetic insulator adjustment.
Claims (8)
1. a high-tension transmission line quick repair tower, be applicable to the ultra-high-tension power transmission line of 220kV and following electric pressure, this emergent repairing tower is for restoring electricity under ultra-high-tension power transmission line accident condition temporarily, comprise the pillar tower body (10) be made up of each basic segment, it is characterized in that: the left side of described tower body (10) is serially connected with three synthetic insulators (30) earthward successively along its tower top, these three synthetic insulators be serially connected (30) by steel strand bracing wire (20) relatively face tilt fix, underhung wire coaster (40) of every adjacent synthetic insulator junction, namely, the below of three synthetic insulators hangs two wire coasters (40) altogether, the right side of described tower body (10) is serially connected with two synthetic insulators (30) earthward successively along its tower top, these two synthetic insulators be serially connected (30) equally by steel strand bracing wire (20) relatively face tilt fix, the below of these two synthetic insulator junctions hangs a wire coaster equally, described each synthetic insulator (30) is with perpendicular along ultra-high-tension power transmission line direction, nearly top place, described tower body (10) left side is provided with overhead ground wire coaster (50), the both sides, front and back of described tower body (10) are respectively equipped with steel strand bracing wire (20) for balancing described tower body (10) left and right sides load.
2. high-tension transmission line quick repair tower according to claim 1, it is characterized in that: this emergent repairing tower entirety is single-column aluminium alloy truss formula structure, described basic segment length 6m, cross section is the square of 0.6*0.6m, each basic segment passes through bolted on connection by ring flange, described tower body (10) top is provided with one piece of tetragonal strain plate (60), for installing the described synthetic insulator (30) of described tower body (10) left and right sides, and the described steel of both sides twists bracing wire (20) before and after described tower body (10), described tower body (10) waist is also provided with one piece of tetragonal strain plate (60), for installing four steel strand bracing wire (20).
3. high-tension transmission line quick repair tower according to claim 1, is characterized in that: this emergent repairing tower allows the ultra-high-tension power transmission line plane corner being not more than 30 °.
4. high-tension transmission line quick repair tower according to claim 1, it is characterized in that: between described two often adjacent synthetic insulators (30), be connected with gold utensil, this gold utensil comprises two U-shaped rings (100) and is connected to the towing plate (90) between these two U-shaped rings (100), and described towing plate (90) hangs described wire coaster (40) by coaster suspension ring.
5. high-tension transmission line quick repair tower according to claim 1, it is characterized in that: the diameter of described wire coaster (40) is greater than 15 times of conductor cross-section diameter, meanwhile, the diameter of described overhead ground wire coaster (50) is also greater than 15 times of overhead ground wire diameter of section; Described wire coaster (40) adopts aluminium alloy to make, and described overhead ground wire coaster (50) is steel coaster.
6. high-tension transmission line quick repair tower according to claim 2, is characterized in that: the bent inclination angle of fire of described tower body top and waist strain plate (60) is respectively 45 ° and 30 °.
7. high-tension transmission line quick repair tower according to claim 2, is characterized in that: this emergent repairing tower height is 24m, and wire at least reaches 13m to ground level.
8. high-tension transmission line quick repair tower according to claim 1, it is characterized in that: described synthetic insulator (30) is for supporting with fixing cord position and ensureing the dielectric strength of wire, and each synthetic insulator (30) is made up of the insulator of two long 2.5m or 3.0m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210246812.5A CN103066523B (en) | 2012-07-17 | 2012-07-17 | High-tension transmission line quick repair tower |
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| CN201210246812.5A CN103066523B (en) | 2012-07-17 | 2012-07-17 | High-tension transmission line quick repair tower |
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| CN103066523B true CN103066523B (en) | 2015-07-01 |
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| CN107795181A (en) * | 2017-10-08 | 2018-03-13 | 国网江西省电力公司电力科学研究院 | A kind of power distribution network pole guy pulling plate method |
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| US1741963A (en) * | 1925-11-20 | 1929-12-31 | Percy H Thomas | Two-circuit transmission tower |
| DE2547596A1 (en) * | 1975-10-24 | 1977-04-28 | Bbc Brown Boveri & Cie | Overhead power line chain suspension system - uses insulator strings with lateral support using bracing chains fixed beneath mast top |
| SU656141A1 (en) * | 1977-03-01 | 1979-04-05 | Северо-Западное Отделение Ордена Октябрьской Революции Всесоюзного Государственного Проектно-Изыскательского И Научно-Исследовательского Института Энергетических Систем И Электрических Сетей "Энергосетьпроект" | High-voltage power transmission line |
| SU736244A1 (en) * | 1977-10-11 | 1980-05-25 | Трест "Запсибэлектросетьстрой" | Pole piece for overhead electric power transmission lines |
| SU935591A1 (en) * | 1980-07-11 | 1982-06-15 | За витель Абдурахманов и Ю.м. Журавлев | Intermediate tower of power transmission line |
| RU2076417C1 (en) * | 1994-02-03 | 1997-03-27 | Украинский государственный проектно-изыскательский институт по проектированию энергетических систем и электрических сетей "Укрэнергосетьпроект" | Supporting structure for high-voltage power transmission line |
| CN202678841U (en) * | 2012-07-17 | 2013-01-16 | 重庆市电力公司检修分公司 | Fast rush repair tower of high-voltage transmission lines |
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2012
- 2012-07-17 CN CN201210246812.5A patent/CN103066523B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1741963A (en) * | 1925-11-20 | 1929-12-31 | Percy H Thomas | Two-circuit transmission tower |
| DE2547596A1 (en) * | 1975-10-24 | 1977-04-28 | Bbc Brown Boveri & Cie | Overhead power line chain suspension system - uses insulator strings with lateral support using bracing chains fixed beneath mast top |
| SU656141A1 (en) * | 1977-03-01 | 1979-04-05 | Северо-Западное Отделение Ордена Октябрьской Революции Всесоюзного Государственного Проектно-Изыскательского И Научно-Исследовательского Института Энергетических Систем И Электрических Сетей "Энергосетьпроект" | High-voltage power transmission line |
| SU736244A1 (en) * | 1977-10-11 | 1980-05-25 | Трест "Запсибэлектросетьстрой" | Pole piece for overhead electric power transmission lines |
| SU935591A1 (en) * | 1980-07-11 | 1982-06-15 | За витель Абдурахманов и Ю.м. Журавлев | Intermediate tower of power transmission line |
| RU2076417C1 (en) * | 1994-02-03 | 1997-03-27 | Украинский государственный проектно-изыскательский институт по проектированию энергетических систем и электрических сетей "Укрэнергосетьпроект" | Supporting structure for high-voltage power transmission line |
| CN202678841U (en) * | 2012-07-17 | 2013-01-16 | 重庆市电力公司检修分公司 | Fast rush repair tower of high-voltage transmission lines |
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| CN103066523A (en) | 2013-04-24 |
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